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(Model.) 2 Sheets-Sheet 1. J. N. ARONSON.

ELECTRIC BRUSH.

No. 279,315. Patented June 12,1883.

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2 Sheets-Sheet 2.

(Model.)

J`l N. ARONSON.

` ELECTRIC BRUSH.

No. 279,315. Patented June 12,1883.

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UNITED STATES VPATENT OFFICE.

JOSEPH N. AEoNsoN, OE LOEDON, ENGLAND.`

ELECTRIC BRUSH.v

SPECIFICATION forming part of Letters PatenteNo. 279,315, dated June 12, 1883.

Application filed July 14, 18%52. (Modell) Patented in England December 21, .1881, No. 5,601;.in France J une 21, 1882, No. 145,705,

and in Beigium June 24,1882, No. 58,297.

To all whom it may concern:

Be it known that I, JosEPH NORMAN AEONa SOX, a citizen of the United States, but teinporarily residing in Old Broad Street, in the city of London, England, have invented a new and useful Improvement in Electric Brushes and I do hereby declare that the following is :t full, clear, and exactdescription of the same.

My invention relates to electrica-l brushes for the application of currents of electricity to the skin of the head and roots of the hair for, promoting the growth of the hair and for curative and remedial purposes:

My invention relates to the combination, with a brush, constructed substantially as hereinafter described, for the transmission of electric currents to the skin and roots of the hair, of an induction-coil and battery for the generation of the currents, and to the peculiar construction of the brush for the purposes above mentioned.

The brush is made principally of animal'- bristles, having intermined therewith two sets of metallic-wire bristles, insulated from one another in the brush-back in which they are set, the said metallic wires being preferablyx in the form ot' loops or staples, the limbs ot' which pass through the back and form the bristles. The two sets are respectively inv connect-ion with the two ends of the secondary wire of the induction-coil, which is arranged within the hollow brush-back, the primary wire heilig connected with the poles o f the battery, which might also be `contained wit-hin the` brush-back or be placed inthe handle of the brush, if provided with one.l The coil may be provided with a regulator consisting of a tube arranged to slide in and out. over the bundle of iron wire in the induction appara-- tus, and projecting` through the side or end of the brush-back, whereby it may be readilyadjusted tov vary the strength of the current;

but this is not necessary, and I prefer to dispense with it. The coil is provided with the usual vibrating eurrentbreaker.

Figure l is a back view of ahair-brnsh,with the inclosing-cover removed, showing the battery induction-coil and connections in pesition, Fig. 2 is a view of the stock, with the plate on which the battery and coil are fixed removed, showing the arrangement of the metallic bristles only; and Fig. 3 is a cross-sec tion of the brush complete. i

a is the induction-coil, and b t-he battery, of the kind known as a medical Lecla-nch,77 both fixed on a wooden or other`- plate, c, fixed to the stock d.

e e are the connections of the primary circuit ot' the coil with the poles of the battery.

f is a spring-contact maker in the circuit of the primary wire, provided with a push-piece, g, which projects through` a hole in the inclosing-cover in position to bedepressed b v the fingen-in order to close the circuit only when the brush is held in the hand for use.

l1 is the usual vibrating currentbreaker of the induction-coil.

13 Iiare the connections ofthe secondary cura cuit,with the wires k k', to which the two sets of wire bristles Z Z', forming the poles, are attached in the ordinary way of brush-making by drawing bent loops of wire through holes in the stock. These two 'sets of wire bristles are insulated from l011e another by the wooden or other stock in which they are fixed. l

m are theordinary animal-bristlesn is the box-cover ofthe bark inclosing the batlteryand coil.

Fig-. 4 is a face, and Figi 5 an end, view of a fieslrbrush in which the wire .bristles are. replaced by rounded inetal strips o o.

In practical operation the brush is held in the hand, with one iinger thereof pressed upon the contact-maker g, and therefore when the brush is applied to the head an electric circuitis formed through the moist skin between the wires or points I I. The electric current (is thus caused to traverse the roots of the hair,

and produces a tonic and highly-beneficial effect, preventing falling of thesaine, promoting its growth and increasing the oily secretions, which render it flexible, smooth, and glossy.

Having thus described my invention, what I claim as new isl, The combination, with a brush having wire points or plates arranged among its bristles, of a battery, an inductioineoil, and a circuit closer having :L push piece extending The foregoing specification of my improve- 1o through the cover of the-brush, Rubietnhtlly menti in eleetrienl brushes und vombs signed as herein shown aud described. by me. K

2. The combinatiolruith u brush provided JOSEPH NORMAN ARONSON. Wit-h the two sets of insulated Wire bristles or Vitnesses point-SZ Z, of the inductioircoil a,t11e battery WM. CrAARK, 'A b, the circuit-closerf g, th'durrentibrealr, e Pdlsm"jllge'm,l C'hdnrery Laue, London.

and the connections e eeandi i, substantially T. XV. KENNARD, as herein shown and described. l ('Zerk, -Chmzfery Lane, London. 

